Eavesdropping-Resilient OFDM System Using Sorted Subcarrier Interleaving

Li, Hao; Wang, Xianbin; Chouinard, Jean‐Yves

doi:10.1109/twc.2014.2365031

Cited by 50 publications

(19 citation statements)

References 24 publications

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“…For an eavesdropper with memory, large M will be preferred but the cumulative error in detecting the received signal will be increasing for each error made. If  is a SER of a CE-FrFT-OFDM system, then SER of an eavesdropper can be given by (6)  …”

Section: Ser Of Eavesdroppermentioning

confidence: 99%

“…means estimated value of legal receiver/transmitter channel gain and e   The estimated m h that is observed by the legitimate receiver can be considered as a noisy version of t h that has been previously obtained by a transmitter and used to determine the interleaving pattern. The reliability of the system depends on the probability of transmitter and legal receiver to correctly estimate the required channel gain and explained in details in [6]. Our research calculated the approximation error obtained by receiver and legal receiver and transmitter based on (2) and (8) and MATLAB simulations were used for its calculation.…”

Section: Reliability Of the Proposed Systemmentioning

confidence: 99%

“…The SER of the legal receiver is given by (6), the channel gain error in (7) reflects the reliability of the system. By reducing it we increase system reliability and computational cost while reducing system security and a balance between computational cost, security and system reliability is needed while doing so.…”

Section: Reliability Of the Proposed Systemmentioning

confidence: 99%

“…Different approaches have been proposed to address the security of wireless communication at the physical layer level including sorting of subcarriers, relay antennas or noise enhancing encryption [6]- [8]. In recent researches wireless link signature is used to secure the communication since it can easily categorizes different receiver based on their physical locations [6].…”

Section: Introductionmentioning

confidence: 99%

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Constant Envelope FrFT- OFDM with Physical Layer Security

2017

Proceedings of 2017 the 7th International Workshop on Computer Science and Engineering

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Physical layer security uses channel characteristics to increases security of the communicating entities. In this paper, channel signature were used to improve the security of wireless communications uses constant envelope with fractional Fourier transform OFDM (CE-FrFT-OFDM) as its multiplexing technique instead of traditional OFDM. The chosen technique is power efficient and poses the same implementation complexity and performance as traditional OFDM. The physical layer security proposed is easily deployed in CE-FrFT-OFDM than in OFDM and maintains its performance advantages. The proposed system secure a communication system by dynamic arrangement of subcarriers (DAS) based on the average channel gain of the subcarriers. The random variation of the wireless channel and its reciprocity between the transmitter and the legal receiver ensures that the communicating entities shares the same channel impulse response (CIR). The DAS also reduces the signal correlation between the communication pairs 40% while that of transmittereavesdropper is reduced by 95% and it increases the computation cost of the eavesdropper in obtaining the transmitted information which leaves guessing of the channel gain the only viable choice of obtaining the transmitted information. By increasing the accepted lever of a channel gain we can increase the secrete capacity of the communication system while maintaining CE-FrFT-OFDM advantages.

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Section: Ser Of Eavesdroppermentioning

confidence: 99%

Section: Reliability Of the Proposed Systemmentioning

confidence: 99%

Section: Reliability Of the Proposed Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Constant Envelope FrFT- OFDM with Physical Layer Security

2017

Proceedings of 2017 the 7th International Workshop on Computer Science and Engineering

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“…The special property of wireless channel is utilized in [9]: the channel between source node and destination node is unique, and the channels between the source node and two destination nodes are decorrelated. The similar property is used in [10], [II]: the reference [10] used the channel parameters in frequency domain while the reference [II] gave the method based on the phase.…”

Section: Introductionmentioning

confidence: 99%

Channel-Parameter-Based Encryption Key Generation Algorithm And Performance Analysis For Wireless Relay Networks Against Eavesdropping

Yang¹,

Wang²,

Gao³

et al. 2014

2014 International Conference on Information and Communications Technologies (ICT 2014)

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In this paper, an encryption key generation algorithm is suggested for multiple-relay networks against eavesdropping. The proposed algorithm is based on the parameters of the wireless channels between the relays nodes and the destination, which is unavailable for any eavesdroper. The secure performance of the proposed algorithm is also analyzed through mathmatical derivation. Specifically, the closed form of key matching probability, an important measure for secure performance, is obtained through multiple-round integration and reasonable approximation. Finally, simulations are provided to corroborate our proposed studies.

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